Please Help

[z3phon]

Hi I just installed this program and it seems to be great but honestly I dont understand anything about it, Im not behind a firewall or using a router. At first it showed my local IP http://10.x.x.x I gave that link to a friend he couldnt connec to it, so I menu ip adress i set it to my external ip and gave that link still no luck.
Can soemone help me out what am I doing wrong?
i tried the self test and it was successful.

[rejetto]

if your address begins with "10." then you ARE behind a router.
a router is not necessarily a box in your house, don't be fooled.
ask the person who manage your network for help.

[Foggy]

If the self test worked, make sure you are giving them your external ip and not an internal one. if you must, goto a site such as whatismyip.com to find out what your external ip is and then try it. otherwise your router or port forwarding needs to be configured.